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Which one of the following alloys is not properly matched with regard to its composition? Alloy Composition (1) Brass Copper and zinc (2) solder Lead and Zinc (3) Gunmetal Copper, Tin, and Zinc (4) Nichrome Nickel, Iron, and Chromium

Which one of the following alloys is not properly matched with regard to its composition? Alloy Composition (1) Brass Copper and zinc (2) solder Lead and Zinc (3) Gunmetal Copper, Tin, and Zinc (4) Nichrome Nickel, Iron, and Chromium Correct Answer (2)

Explanation:

Alloys: 

  • Alloys are basically a homogenous mixture of a metal with another metal or non-metal. 
  • This is done to change the property of metals or improvise some of the qualities. 
  • The alloys can make metal rust-free, can enhance its, strength, and make it more useful for certain purposes. For example, steel, an alloy of iron has more strength than alloy and is rust-free. Hence it is used for construction purposes. 

Alloy

Composition

 Uses

(1) Brass

Copper and zinc

 Making Utensils, Locks, gears

(2) solder

Lead and Tin

 Electronics, heating, etc

(3) Gun metal

Copper, Tin, and Zinc

 Gears, casting, values

(4) Nichrome

Nickel, Iron, and Chromium

 Heating, toasters, and space heaters

Solder is the alloy of lead and tin but in question, it is Lead and zinc. So it is the correct option. 

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